如何在火星上跑步呢? 感官运动连贯性对跑步和空间感知在模拟低重力环境中的影响
Marie Keime1,2,3, Loïc Chomienne1, Cédric Goulon1
1Aix Marseille University, CNRS, ISM, Marseille, France.
Frontiers in physiology
|August 21, 2023
概括
模拟的火星重力 (38%的体重) 改变了跑步生物力学,并减少了对平衡的视觉线索的依赖. 在减轻重力的条件下,机动和感知适应性不同.
科学领域:
- 生物力学 生物力学
- 人类的机动运动.
- 引力效应是什么?引力效应是什么?
背景情况:
- 机动控制,包括运动,受到重力的显著影响.
- 身体下部正压跑步机 (LBPPT) 允许在地球上研究降低体重 (BW) 对运动的影响.
- 模拟低重力环境,如火星,需要了解运动和感知中的适应性.
研究的目的:
- 在运行时使用LBPPT调查适应模拟的火星重力 (38%BW).
- 通过虚拟现实评估连贯视觉流通过虚拟现实对模拟低重力运行的影响.
- 在不同的模拟重力和视觉条件下检查感知直立和向量变化的变化.
主要方法:
- 29名参与者在100%和38%的BW条件下在LBPPT上运行.
- 虚拟现实呈现了连贯的视觉场景,以评估视觉流动效应.
- 测量了运行性能 (地面反应力,加速度),感知直立和向量.
主要成果:
- 降低BW (38%) 导致生物力学适应:活性峰值力和静止时间减少,飞行时间增加,独立于视觉上下文.
- 车和推开时间的强烈个体间差异出现在38%的BW.
- 对视觉直立的动态视觉线索的依赖在38%的体力水平下降,这表明对自我中心参考的使用增加.
- 在38%的BW时,视觉上下文仍然不会影响视觉,而不是在100%的BW时.
结论:
- 运动器适应减少的BW发生独立于视觉上下文.
- 感知系统适应低重力,对垂直性的视觉线索的依赖性减少.
- 机动和感知适应受模拟的重力和视觉背景的影响不同.
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